Allow skipping the xz archives
Allow skipping the xz archives

Using 'ant -Darchives.skipxz=true'

shimib/scala,felixmulder/scala,slothspot/scala,felixmulder/scala,scala/scala,shimib/scala,jvican/scala,shimib/scala,scala/scala,lrytz/scala,felixmulder/scala,shimib/scala,scala/scala,lrytz/scala,felixmulder/scala,jvican/scala,slothspot/scala,martijnhoekstra/scala,martijnhoekstra/scala,martijnhoekstra/scala,jvican/scala,martijnhoekstra/scala,martijnhoekstra/scala,shimib/scala,jvican/scala,jvican/scala,jvican/scala,jvican/scala,felixmulder/scala,slothspot/scala,lrytz/scala,lrytz/scala,martijnhoekstra/scala,slothspot/scala,scala/scala,felixmulder/scala,slothspot/scala,felixmulder/scala,slothspot/scala,lrytz/scala,scala/scala,scala/scala,shimib/scala,slothspot/scala,lrytz/scala